Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
17004excellentexcellent11excellent
16005excellentexcellent11excellent
150021goodexcellent11excellent
14004excellentexcellent11excellent
13004excellentexcellent11excellent
12005excellentexcellent11excellent
11003excellentexcellent11excellent
10004excellentexcellent11excellent
09004excellentexcellent11excellent
08006excellentexcellent11excellent
07006excellentexcellent11excellent
06007excellentexcellent11excellent
05007excellentexcellent11excellent
04007excellentexcellent11excellent
03007excellentexcellent11excellent
02007excellentexcellent21excellent
01009excellentexcellent21excellent
000014goodexcellent31excellent
230024goodexcellent51excellent
220034goodexcellent61excellent
210023goodexcellent41excellent
200013goodexcellent21excellent
190011excellentexcellent21excellent
18009excellentexcellent11excellent